Timer extension



July 20,1926. v 1,593,105 A, J.- c. SCHWARTZ TIMER EXTENSION .iied Feb.2o. 1922.

Patented July 20, 1926.

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ALFRED JAC. SCRTZ, 03: CHCAGO, ILLENOS TIMER EXTENSIQN.

Application filed February 20, 1922.

rlhis invention relates to improvements in extensions tor timers such asare employed in connection with the motor of automobiles.

One ot the primary objects of the present invention isto provide a timerextension which may bereadily and conveniently'applied to -any of thewell known makes of timers ot the general type retcrredto above andwhich will support thelends ot the con ductor wires in` anelevatedposition where they willinotibe liable tobecome fouled with dirt andgrease, andin such position that they will'be more readily connectedwith th-e timer than is ordinarilypossible and withn out the necesssityof removing or in any way disturbing the timer. y

Another object of the invention is to provide a timer extension soconstructed that when mounted in place upon the timer it will not in anyway interfere with the proper adjustment ot the timer shell nor beliable to be brought into Contact with any moving part-s such as the fanbelt.

In the .accompanying drawings:

Figure 1 is a perspective view of the timer extensions embodying theinvention mounted upon a timer shell of ordinary construction, a.portion of the terminal block of the timer being shown in section toillustrate the manner of assembling the conductor members therewith; and

Figure 2 is a sid-e elevation of the device mounted upon the timershell.

In the drawings the numeral 1 indicate-s a commutator or timer shell ofthe ordinary construction as employed in connection with automobilemotors and which shell is provided with the usual binding post-s 2 towhich are applied binding nuts 3 which ordinarily secure the terminalsof the commutator wires. The numeral l indicates the usual sp-ring armwhich extends from the breather tube and engages and supports thecommutator shell in a manner to permit of the required angularadjust-ment which is effected in the usual manner through manipulationof the spark lever (not shown) and operative connection between thesam-e and the usual upstanding arm 5 upon the said shell 1.

The extension embodying the invention comprises a terminal block whichis indicated in general by the numeral 6 and which may be formed of anysuitable insulating material such for example as liber, the block havinga general segmental form and being Serial No. 537,918.

the numeral 10. The members 9 and 10 may be formed ot smell rod materialbut preferably of copper tubing as this material presents certainadvantages and is generally more satisfactory than solidmaterial. Thusand the lower or chordal each of the conductor members comprises alength or copper tubing` which has its upper end portion bent at anangle as at 1l to adapt it to be iitted into the respective one of theopenings 8 so that the bend will be located substantially at the planeof the chordal yside of the terminal block 6 and will therefore serve ineifcct as a shoulder to limit the upward movement of the said endportion of the member into its respective opening 8 or the relativedownward movement of the terminal block. The upper end oit each memberprojects a suitable distance above the arcuate side 7 of the terminalblock and is threaded as at 12 and has applied thereto a washer 13 and abinding nut 14 whereby the terminals of the commutator wires may beanchored to the block and electrically connected with the respectiveconductor members 9 and 10.

Preferably the conductor members 9 are litted through the end ones ofthe openings 8k in the terminal block and below their bends 11 areextended downwardly in a rearward direction as best shown in Figure 2and somewhat converge except at their lower end portions where they areturned laterally in opposite directions, the lower ends of these membersbeing flattened to provide ears 15 having apertures 16 adapting them tobe iitted over the binding posts 2 at the upper side of the shell 1 inwhich position they may be secured by the respective binding nuts 3.The. members 10 are extended downwardly from their bends 11, for aportion of their length in substantial parallelism, and at their lowerport-ions are curved outwardly 'from each other in lateral directionsand are likewise curved rearwardly and downwardly to their lower endswhich are formed in the same manner as the ends 15 ot the members 9 andare similarly applied to the lower binding posts of the shell. Byreference to lfigure 2 oi the drawings it will be observed that the saidlower rearwardly and downwardly curved portions of the members 1G whichportions are indicated by the numeral 17, are spaced forwardly trom thesurface ot the timer shell l a suliicient distance to entirely clear thespring arm 4f which retains the shell in place, this arm projectingbetween the shell and the said portions 17 of the members lO and beinglocated below the lower portions of the members 9. lt will also beobserved by reference to Figure 2 that the lower portions otI themembers 9 are so positioned with relation to the arm 5 as not to in anyway interfere with the connection with said arm of the rod which leads`from the spark lever rod.'

From the foregoing description of the invention it will be evident thatby the use of the extension the commutator wires at their forward endswill be 'supported in an elevated position above the timer shell wherethey will not be liable to become fouled with accumulations of dirt andgrease and furthermore, because oi' their elevated location, theirterminals may be more readily and conveniently assembled with the upperends 12 of the conductor members 9 and l0.

Having thus described the invention what is claimed as new is:

ln an internal combustion engine7 the combination with the usualcommutator shell provided with spaced radial binding posts to receivethe commutator wires` of an elongated block of segmental form havingradial openings7 stout conductors supporting the said block clear of thecommutator yshell and attached at one end to the binding posts thereofand having the opposite end passing through an opening of the block andsecured therein and projecting to provide a binding post, and having theprojecting end threaded, and a binding nut on the projecting threadedend of each of the said conductors to secure a commutator wire thereto.

ln testimony whereof I affix my signature.

ALFRED J. o. sonwnirrz.v [as]

